temp workaround for audio export

Author: OctoFlareDev

scripts/audio_export/audio_export.gml

@@ -24,7 +24,7 @@ function mp3_export() {
 	fn = string(get_save_filename_ext(output_format + " files (*" + output_ext + ")|*" + output_ext, filename_new_ext(songs[song].filename, "") + output_ext, filename_path(songs[song].filename), condstr(language != 1, "Export audio track", "导出音频文件")))
 	if (fn = "") return 0
 
-	save_song(temp_file, true);
+	save_song(temp_file, true, false, 5);
 
 	var args = [temp_file, fn]
 	var kwargs = {

scripts/save_song/save_song.gml

@@ -1,10 +1,10 @@
 function save_song() {
 	// save_song(fn[, backup, is_autosave])
-	var fn, backup, nbsver, f, a, ca, cb, fsave, asave;
+	var fn, backup, nbsver, f, a, ca, cb, fsave, asave, has_v6_ins;
 	fn = argument[0];
 	backup = false;
 	asave = false;
-	var has_v6_ins = false;
+	has_v6_ins = false;
 	var cursong = songs[song];
 	if (argument_count > 1) {
 		backup = argument[1];
@@ -28,6 +28,10 @@ function save_song() {
 	} else {
 		nbsver = save_version
 	}
+	
+	if (argument_count > 3) {
+		nbsver = argument[3];
+	}
 
 	buffer = buffer_create(8, buffer_grow, 1)